AD8270 Analog Devices, AD8270 Datasheet - Page 3

• Manufacturer Part Number: AD8270
• Description: Precision Dual-Channel, Difference Amplifier
• Manufacturer: Analog Devices

SPECIFICATIONS
DIFFERENCE AMPLIFIER CONFIGURATIONS
V
Table 2.
Parameter
DYNAMIC PERFORMANCE
NOISE/DISTORTION
GAIN
INPUT CHARACTERISTICS
OUTPUT CHARACTERISTICS
POWER SUPPLY
1
2
3
4
Includes amplifier voltage and current noise, as well as noise of internal resistors.
Includes input bias and offset errors.
At voltages beyond the rails, internal ESD diodes begin to turn on. In some configurations, the input voltage range may be limited by the internal op amp (see the
Input Voltage Range section for details).
Internal resistors are trimmed to be ratio matched but have ±20% absolute accuracy. Common-mode resistance was calculated with both inputs in parallel. Common-
mode impedance at only one input is 2× the resistance listed.
S
Bandwidth
Slew Rate
Settling Time to 0.01%
Settling Time to 0.001%
Harmonic Distortion
Voltage Noise
Gain Error
Gain Drift
Offset
Common-Mode Rejection
Power Supply Rejection Ratio
Input Voltage Range
Common-Mode Resistance
Bias Current
Output Swing
Short-Circuit Current Limit
Supply Current
= ±15 V, V
Average Temperature Drift
Ratio
(per Amplifier)
2
REF
1
= 0 V, T
3
A
= 25°C, R
4
Conditions
10 V step on output
10 V step on output
f = 1 kHz, V
R
f = 0.1 Hz to 10 Hz
f = 1 kHz
T
T
DC to 1 kHz
T
Sourcing
Sinking
T
LOAD
A
A
A
A
LOAD
= −40°C to +85°C
= −40°C to +85°C
= −40°C to +85°C
= −40°C to +85°C
= 600 Ω
= 2 kΩ, specifications referred to input, unless otherwise noted.
OUT
= 10 V p-p,
Min
70
−13.7
−15.4
−13.8
Rev. 0 | Page 3 of 20
G = 0.5
Typ
20
84
52
450
7.5
100
60
2.3
30
700
750
2
1
3
86
2
Max
800
900
0.08
10
1500
10
+15.4
500
+13.8
+13.7
2.5
3
Min
76
−13.7
−15.4
−13.8
G = 1
Typ
15
30
700
750
145
1.5
38
1
300
2
92
2
10
100
60
2.3
+13.8
Max
800
900
0.08
10
1000
10
+15.4
500
+13.7
2.5
3
Min
80
−13.7
−15.4
−13.8
G = 2
Typ
10
30
700
750
95
1
26
1
225
1.5
98
2
7.5
100
60
2.3
Max
800
900
0.08
10
750
10
+15.4
500
+13.8
+13.7
2.5
3
AD8270
Unit
ns
ns
dB
nV/√Hz
μV/V
kΩ
mA
MHz
V/μs
μV p-p
%
ppm/°C
μV
μV/°C
dB
V
nA
V
V
mA
mA
mA